Auxiliary air control for internal-combustion engines



E. A. EKLUND AUXILIARY AIR CONTROL'FOR INTERNAL CIOMBUSTION ENGINES Filed Ju1.y.,21, 1925- .FB. 16 ,1192s.

grt/wanton Patented Feb. 16, 192e. s y

UNITED 'STATES lmifri-151T` OFFICE.

- ELMER A. EKLUNnQOF SPENCER,y SOUTH DAKOTA.

. AUXILIARYY Am CONTROL ron INrERNAL-'COMBUsTrON[ENGiNEs appuanpfmediuiy 21, 1925'. I serial No. 45,115;

To all whom 'tmag/ concern."

Be itlrnown that I,- Emma" A. EKLUND, a citizen of the United States, *residingr at Spencer, in the county of AMcCook and State fof South Dakota, have invented certain new and useful Improvements in Auxiliary Air Controls for Internal-Combustion Engines, oil which the following is a specification, reference being had tO ings.`

This. invention relates to devices. for. admitting air to the manifold of an internal combustion engine tothereby save fuel Vand secure a better opera-tion of the engine, and

particularly to "devices of this character wherein the air is drawn into-.the manifold upon eachk pulsation offthe engine and wherein means are provided 'for controlling the amount or' auxiliary air thus passingV into the manifold. .f

The general objectof'the inventionfis to provide a device of this character which is' inanifoldtothe cylinders of the engine, and

provide in saidinlet pipeY a spring-pressed ball valve normally held to its seatV by the eiiect of the spring but withdrawn from the seat bythe suction of the engine,ithe valve being or' spherical shape so as to permit the air to readily pass around the valve and pass downthrough the tubing.y

Another ob 'ect 1s to provide acuti-'OH valve controlling' the inlet of airto the Vairinlet pipe and which may be readily adjustedto vary the amount of air so drawn into the engine. Y

Still another object is to provide a device or" this character wherein the ball is properly seated and wherein the spring isnot allowed to touch the barrel or inlet pipe within which it is housed and in which the ball is properly-guided.- l

Other objects will appear in the courseof the following description.

My invention is illustrated in the acc-Oinpanying drawing, wherein:

the accompanying draw-y .Figure 1 is an elevation of an engine and 4a portion of the instrument board showing my device applied thereto;

F igure2 is a frontelevation of the ball and air controlling valve j 'Figure-B is a longitudinal vertical section through the dial and air controlling valve n f f Figure 4 is an elevation' ofl the barrel showing the ball and spring guiding means therein. y g 1 Referring to this drawing, 10 designates a barrel or inletpipe or' any desired. diam# eterv but which 'in actual `practice will have an internal diameter of approximately half ses,y

an inch, the lower end of which is formed with a screw-threaded-nipple'11to which a pipe 1211s, 'for instance, copper tubing may` be used, this copper tubing' being/carried kto ,the manifold 13 and engaged'therewith so as to discharge air intothe manifold.

The upper end of the barrel -10 is screwf threaded, -as at114, and extending upward from lthebarrelarea plurality ot' guides v15 of thin metal'which may be formed integrar with the tubeor attachedthere'to in any` suitable manner. Hav-ing .engagementwith the threads 14 is theca-p 16 which constitutes a valve casing and which is formed with the longitudinal bore 17 and lat the-lower end of said bore with thehemispherical seat 18 within which the ball valve'v19 seats;` Ob` soY viously the' ball valve is ofgreat'er diameter than the bore 17 and inasmuch as thesealtr 18 andthe ball are ground so Y as to'have an air-tight fit, it `follows Vthat whenV the ball y isheld toV its seat no Vair will pass through`-y the boref17. a n n v The ball is held to itsl seat by means of a coiled spring E20` which is'smaller in diameter than the bore of the barrel 10 and seats at its lower end' againsta shoulder 21 f formed atthe lower end of the barrel. spring bears upward on the ball and holds it to its seat but at every suction stroke of the" engine the ball is drawn `from its seat and air passes downward through the barrel 10 and through the vcopper pipe 12 into the manifold 13 and so to the cylinder which is being charged.

Mounted upon the upper end of the head or cap 16 isa plate 22V having an aperture 23 to engage the screw-threaded end ofthe memberV 16..V Pivotally mounted upon this plate is a cut-off Vvalve 24 in the form of a `blade pivoted-upon a screw 25 which. passes This lnto th plate :32. this screnv loeing,` surround spring l2G which bears against the cut-oi" valve 2st and urges this valve tightly s the face of the plate. llllien turned in vone position it will entirely cut o l the passage ot' air throuzfgh the opening` 2" *When the valve is turned to entirely clear the opening` 23, it isrohvious that a full charge ot' air niay pass downward through the valve leasing hut the valve may 'on turned to cut oii any desired amount of air passingl through the opening;` 23 so that the amount oi' air may he reduced or increased as desired.

Pret-erahl the estreniitvy7 ot the valve is 'formed with a pointer operating` over a spring upon the 'valve 1Q, l 'have provide-d ineans r'or cont-r lling` the tension of the sprinten This tension is controlled hf relatively turning the valve 10 and the inel her 1l into or ont or" each other to a greater or degree and the adjustn'ient of the n'ieinher l1 in the barrel 10 may` he accoinplished hy simply rotating'V the ineinher 1.1

' 1with reference to the harrel 1t), and the n'ieinher 11 is held in its rotated position with reference to the ha-rrel 1() hy ineans of the jam nut 30.

it iseparticularl),y necessaryY that the spring` should have 'tree movement within the harrel 10-and that, therefore, this spring; 2O should iot hear 1n any Way against the sngle Walls et the barrel, and furthermore absolutely necessary that the ball shall free vertical movement and that it hear fully against its seat 18 when the valve is elosed so as to absolutely prei/ent the entrance ol: air. lf3/Then the Valve is opened, however, by a compression of the spri due to suction of 'the engine, the air entering,- the bore 17 'will pass 'freely around the spherical valve.

l have found in actual practice that 'this device operates very eliectively upon inotor Vehicles inasinneh as by its use l greatly reduce the ainonnt ot Vgasoline or other fuel consumed per inile. This has been found hy actual test. Furthermore, l fin-d that the introduction ol' air into the nrnii'old at tnis point seeins to increase. the energy oi the niotor. While l have illustrated the hairel 10 as being disposed at or adjacent the instrument board or projecting from the dial oi" plate 22, l do not 'Wish to he li-inited to this position as it is obvious that this ineinher 10 With its Valve easing- 16 and ineinher 11 might he disposed anywhere in the length of the pipe 12, either closely adjacent to the' manifold 13 or closely adjacent to the' plate 22.

I ol'aiin The combination with the manifold of an engine, of an air valve casing connected to the inaniiold, a valve therein opening npon suction Within the maniiold, a spring normally holding the Valve closed, inannalljy operable means 'for controlling the ainonnt of air passing,` through said valve ineludinga plate having an inlet opening` leading` to the valve, a hlade-like valve oseillatahly mounted upon the plate, and aspring nrgine said blade-like valve against the plate said blade-like valve being' forined at one end With a linger hold and at its opposite end with a pointer, the face of the plate being' formed with a scale over which said pointer moves.

-nvtestiinony whereof l hereunto aiiicniy signature.

ELMER A. El LUN 

